Compare · Growth and marketing tools
Kit vs Substack
At the time of writing (September 2026), Kit is free up to 10,000 subscribers, with Creator at $33/mo and Pro at $66/mo billed yearly (at 1,000 subscribers), and charges 3.5% + 30c on digital products and subscriptions. Substack is free with no subscriber limits and takes 10% of paid subscription revenue plus Stripe fees (2.9% + $0.30, and 0.5% for recurring billing).
Kit is a marketing tool: automations, sequences, segments, landing pages. Substack is a publishing network with an app and discovery built in.
Kit vs Substack side by side
From each product’s own site or our research, at the time of writing (September 2026). Prices and terms change, so check before you decide.
| Feature | Kit | Substack |
|---|---|---|
| Free | Up to 10,000 subscribers | Unlimited subscribers |
| Fee on paid subscriptions | 3.5% + 30c (incl. card processing) | 10% + Stripe fees |
| Automations | Unlimited on Creator | Not a focus |
| Discovery | Recommendations network | Substack app, Notes, recommendations |
| Sell products | Digital products and subscriptions | Paid subscriptions |
Which should you pick?
Pick Kit if…
- You want lower fees on paid subscriptions.
- You need automations and sequences.
- You sell courses or digital products.
Pick Substack if…
- You want an audience network and app.
- You want to write without setting anything up.
Where LaunchRanked fits
Disclosure: LaunchRanked is our product. Where we list it, we say so, and we place it under the use case it fits rather than at the top by default. Everything else here is from the vendors’ own sites or our research, and we say where they’re better.
This one is outside what we do: LaunchRanked doesn't make email or newsletter software. We compared them because founders ask us, and we'd rather give a straight answer than a sales pitch.
If your newsletter or course is a product, you can launch it on LaunchRanked for a permanent page and a followed link after review.
Frequently asked questions
Which is cheaper for paid newsletters?
Per transaction, Kit's 3.5% + 30c is lower than Substack's 10% plus Stripe fees. Above 10,000 subscribers, Kit also needs a paid plan.
Do I own my list on both?
Substack says you own your content and mailing list. Kit is an email tool where you export your list any time.
Which is better for growth?
Substack has network discovery through its app. Kit has recommendations among creators and paid recommendations.
Sources we checked
Checked on their own sites on 23 September 2026. Prices and terms change, so check before you buy. Domain ratings are approximate third-party estimates.